812678396 has 6 divisors (see below), whose sum is σ = 1422187200. Its totient is φ = 406339196.

The previous prime is 812678381. The next prime is 812678401. The reversal of 812678396 is 693876218.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101584796 + ... + 101584803.

It is an arithmetic number, because the mean of its divisors is an integer number (237031200).

Almost surely, 2^812678396 is an apocalyptic number.

It is an amenable number.

812678396 is a deficient number, since it is larger than the sum of its proper divisors (609508804).

812678396 is a wasteful number, since it uses less digits than its factorization.

812678396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203169603 (or 203169601 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 812678396 is about 28507.5147285764. The cubic root of 812678396 is about 933.1960780590.

The spelling of 812678396 in words is "eight hundred twelve million, six hundred seventy-eight thousand, three hundred ninety-six".